Automatic elastic check-valve for pneumatic tires.



P. P. WOODS. AUTOMATIC ELASTIG GHBGK VALVE FOR PNEUMATIG TIRES.APPLICATION FILED MAY 2, 1911.

1,041,216. x Patented o@n.15,1912.

IPIN'KNEY '.E. WOOD, OF HOT SPRINGS, ARKANSAS.

AUTOMATIC ELASTIC CHECK-VALVE FOR PNEUMATIC TIRES.

Specification of Letters Patent.

Patenten oet. 15,1912.

Application filed May 2, 1911'. Serial No. 624,545.

y Springs, in the county of Garland and State of Arkansas, haveyinvented certain new and useful Improvements inl Automatic ElasticCheck-Valves for Pneumatic Tires, o-f which the following is aspecification.

This invention has relation to new and useful improvements in automaticelastic check valves for pneumatic tires, and the main objects thereofare to check the outward rush of air after being pumped into the tire bymeans of a valve that is elastic, simple in construction, etlicient inoperation and-durable.

A further object of my invention is to pro- I vide an eliicient plugforclosing up punctures that might appear in a pneumatic tire. With theforegoing and other 'objects in view my invention consists in the novelfeatures of construction, combination and arrangement of parts-as aredescribed in this specification, illustrated in the accompanyingdrawings, forming a part thereof, and particularly pointed out 1n theappended claim.

Reference being had to the drawings: Fign ure 1 is a perspective view ofa segment of a pneumatic tire to which my invention has been applied.Fig. 2 is a central, vertical,

sectional view of Fig. 1. Fig.`3 isa vertical, transverse, sectionalview of a pneumatic tire taken centrally through my valve as appliedthereto, said tire being-iniiated, said valve being in`closed position.Fig. 4 is a perspective view ofl a tubular member which is secured tothe outer surface of the tire and forms a reinforced memberl and valvestem, said valve being illustrated immediately below said reinforcingmember.

Referring more particularly to the drawings, in which like numeralsdesignate like parts throughout, my invention is described as follows:

The pneumatic tire l, is provided with an` l collapsible and taperingnearly td a point, the upper face of said shoulder being on an exactline with the outer surface of the tire, and the valve at this pointexactly fits in the opening 2, of the tire, said valve 3, is taperedfrom its shoulder 4, to its inner end 5, so that the air lwhen pumpedinto the tire will easily close the inner; end of the Valve asillustrated in Fig. 3. The valve stem 6, which consists of the part fromthe shoulder Encircling the stem is a tubular reinforcing member 8, andprovided integral therewith is a flange 9. Said reinforcing member ispreferablymade of rubber, the flange 9, of said reinforcing member isvulcanized to the outer surface of the tire when the valve is placed inposition. lThe shoulder 4, comes squarely up against the shoulder of the"flange and the reinforcing tube and therefore it cannot work up or outof the tire or of the reinforcing tube but is, by means of its shoulderand the shoulder of the reinforcing tube and its flange, held firmlyrdown in place. On the outer end of the reinforcing member 8, may besecured in any substantial vvay a cap l0, said cap is obviously for thepurpose of preventing dust or grit from entering the valve after thepneumatic tire has been inflated.

Although I have specilically described the novel features ofconstruction, combination and -arrangement ofparts of my invention, -yetI reserve and may exercise the right to make such changes therein as donot depart from the spirit of the invention or the scope of the appendedclaim.A

fHavin'g described my invention what I claim as new and desire to secureby Letters Patent, is:

In combination with a pneumatic tire provided through its inner wallwith an opening, a valve consisting of a hollow stem and provided aboutmidway its length with a shoulder, said shoulder fitting in'to saidopening, the lower end of said valve being collapsible and taperingnearly to a point, the upper wall of said shoulder being on a line withthe outer surface of said tire, the

4, to the outer end 7, is of uniform diameter.

outer part or stem of said valve beingof uni- 'form size, a reinforcingmember fitting In testimony whereof I aiiix my signature y around saidstem and extending from the in presence of two witnesses. f upper endthereof down to and tting on the shoulder of said valve, a Bangeintegral with PINKNEY P' WOOD' and extending outwardly from the lowerend Witnesses:

l of said reinforcing member and vulcanized C. E. SPARKS,

to said tire. L. CAMPBELL.

